Leave 2.8 wiring unchanged; release GT911 INT after reset so SCL21 can share CN1. Co-authored-by: Cursor <cursoragent@cursor.com>
LVGL dual-gauge UI for eCO2/TVOC on GPIO22/27, plus archived cyd_28r bins and one-click flash scripts. Co-authored-by: Cursor <cursoragent@cursor.com>